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What are pneumatic bones ? How do they h...

What are pneumatic bones ? How do they help birds ?

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Main bones in birds are extensions of air sacs with out bone marrow are called pneumatic bones. These are helpful in flying to birds.
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VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-ANIMAL DIVERSITY - II (CHORDATES) -IMPORTANT QUESTIONS
  1. What are pneumatic bones ? How do they help birds ?

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  2. List out the characters shared by chordates and echinoderms.

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  3. What is the importance of endostyle in lancelets and ascidians ?

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  4. How do you justify the statement heart in fishes is a branchial heart.

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  5. How does the heart of an amphibian differ from that of a reptile ?

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  6. What are corporabigemina ? Mention their chief function.

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  7. Distinguish between mesorchium and mesovarium.

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  8. Distinguish between milt and spawn.

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  9. Name two poisonous and non-poisonous snakes found in south India.

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  10. In which features does the skin of a reptile differ from that of a fro...

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  11. Name the four extra embryonic membranes.

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  12. What are jacobson's organs ? What is their function ?

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  13. What is 'wish bone' ? What are the skeletal components that form it ?

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  14. Distinguish between the crop and the gizzard in birds.

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  15. Name the three meninges. In which group of animals do you find all of ...

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  16. Name the vertebrates groups in which 'renal portal system' is absent.

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  17. Give three major differences between chordates and non-chordates and d...

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  18. Name the four 'hallmarks' of chordates and explain the principal funct...

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  19. Describe the features of a tunicate that reveals its chordate identify...

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  20. Compare and contrast cartilaginous and bony fishes.

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  21. Describe the structure of the heart of man with the help of neat label...

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